Principal, Environmental Engineer

Find your path and enjoy the journey at Haley & Aldrich. With us, you’ll tackle clients’ most meaningful challenges in the built and natural environments – and, in turn, build stronger communities. You’ll work with teams of passionate colleagues, driven by a commitment to technical excellence and continuous learning.

As a company, we aim to build a world where communities go beyond resilience, embracing change as an opportunity to enhance safety, well-being, and quality of life. Join us to accelerate this vision and your professional development.

We are currently seeking a Principal to work in a technical support role with highly skilled professionals on diverse project teams in a dynamic environment. This is an excellent opportunity to join a growing group and company and get involved in a variety of projects for a diverse range of clients. The role is full‑time based in our Holicong, PA office or virtually.

This role offers an exciting opportunity to play a key role in delivering strategic value and driving meaningful outcomes for our clients and team. We are seeking a motivated and accomplished environmental scientist with CERCLA and ecological permitting and restoration experience to help us grow our environmental and natural resource consulting practices with existing and new clients.

In this position, you will:

• Lead and grow the company’s portfolio by developing and maintaining strategic client relationships, identifying new business opportunities, and driving significant revenue growth.
• Oversee large, complex projects from initiation to completion, ensuring they meet technical, budgetary, and client satisfaction goals. Serve as a senior leader on project teams and oversee all phases of service delivery.
• Build and guide high‑performance teams, fostering a collaborative environment. Mentor emerging talent and promote staff development through hands‑on coaching and leadership during project execution.
• Contribute to the company’s long‑term strategy by identifying new markets, services, and technologies, and leading proposals for high‑impact projects.
• Actively participate in professional organizations, representing the company, providing thought leadership, and influencing industry trends.
• Ensure that all work is performed in accordance with company and client Health & Safety protocols.
• Demonstrate our foundational safety behaviors.

Minimum Skills and Requirements:

• Master’s or PhD degree in environmental science, ecology, biology, or other related discipline.
• 20+ years of experience in contaminated site management and natural resource consulting with a proven track record of driving business growth through client relationships and leadership in complex projects.
• Demonstrated expertise in both business development and project leadership, with experience safely and profitably leading high‑revenue projects and client portfolios.
• Strong written and verbal communication skills, with the ability to convey complex ideas and lead client and internal discussions effectively.
• Proven leadership experience in building and managing diverse teams, mentoring staff, and fostering collaboration.
• Strong business acumen with the ability to balance strategic growth, client needs, and company profitability.

• Significant experience in multi‑party CERCLA program management, adaptive management approaches, and cost allocation, with established relationships and insights into industry trends.
• Significant experience with natural resource permitting and restoration.
• Experience presenting at conferences or contributing thought leadership within professional organizations.
• In depth knowledge of federal and New Jersey/New York environmental regulations associated with complex site remediation and restoration.
• A passion for continuous learning, staying at the forefront of industry developments, and contributing to innovation within the company.

Haley & Aldrich is committed to solving our clients’ most meaningful challenges in the built and natural environments. Our team of 1,000+ engineers and scientists across the United States draws inspiration from one mission:…